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bagirrra123 [75]
3 years ago
5

Matilda measures the perimeter of her bedroom to determine how many feet of border she needs to go around the tops of the walls.

Two walls are each 96 inches long, and two walls are each 3 yards long. She pays $30 for border that costs $1 per foot. What are steps that you should take to determine if Matilda bought the correct amount of border? Select all that apply.
A.
Calculate the area of Matilda's bedroom.

B.
Convert so that Matilda's wall measurements are both in the same units.

C.
Calculate the number of feet of border that Matilda bought.

D.
Add 48 inches and 1.5 yards to obtain the perimeter of Matilda's bedroom.

E.
Compare the number of feet of border Matilda bought with the number of feet in the perimeter of her bedroom.
Mathematics
1 answer:
Grace [21]3 years ago
3 0
The answer is most likely a because if you calculate its better
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Answer:

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2) 99.7%

Step-by-step explanation:

The z-score for a normal distribution is given by:

z=\frac{X-\mu}{\sigma}

1- The given data is:

σ = 4 years

μ = 50 years

For X = 45 and X =55

z_1=\frac{45-50}{4}\\z_1=-1.25\\z_2=\frac{55-50}{4}\\z_2=1.25

A z-score of -1.25 corresponds to the 10.57th percentile of a normal distribution, while a z-score of 1.25 is equivalent to the 89.44th percentile.

Therefore, the percentage of the alligators are between 45 and 55 years old is:

P=89.44-10.57=78.87\%

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2- The given data is:

σ = 2 minutes

μ = 17 minutes

For X = 11 and X =23

z_1=\frac{11-17}{2}\\z_1=-3\\z_2=\frac{23-17}{2}\\z_2=3

A z-score of -3.0 corresponds to the 0.135th percentile of a normal distribution, while a z-score of 3.0 is equivalent to the 99.865th percentile.

Therefore, the percentage of people that should be seen by the doctor between 11 and 23 minutes is:

P=99.865-.0135=99.73\%

99.7% of people.

3 0
4 years ago
FIND THE UNIT RATE AND ROUND TO THE NEAREST HUNDREDTHS IF NECESSARY. Jasigreen's class opened last year and serviced 6,840 custo
Vladimir [108]
<span>6840 customers ... 45 days<span>
x customers = ? ... 1 day

If you would like to know how many customers were in Jasigreen's class in 1 day, you can calculate this using the following steps:

6840 * 1 = 45 * x
6840 = 45 * x     /45
x = 6840 / 45
x = 152 customers

<span>The correct result would be </span>152 customers<span>.</span></span></span>
4 0
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spin [16.1K]
P-8+6p=2p+7
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4 years ago
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storchak [24]

Answer:

0.5

Step-by-step explanation:

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3 years ago
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Answer:

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